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      1 /*
      2  * Copyright (C) 2013 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 package com.android.transitiontests;
     17 
     18 import android.app.Activity;
     19 import android.os.Bundle;
     20 import android.view.View;
     21 import android.view.ViewGroup;
     22 import android.transition.Scene;
     23 import android.widget.TextView;
     24 import android.transition.Fade;
     25 import android.transition.Recolor;
     26 import android.transition.Slide;
     27 import android.transition.Transition;
     28 import android.transition.TransitionSet;
     29 import android.transition.TransitionManager;
     30 
     31 
     32 public class LoginActivity extends Activity {
     33     ViewGroup mSceneRoot;
     34     Scene mCurrentScene;
     35     TransitionManager mTransitionManager;
     36     Scene mLoginScene, mPasswordScene, mIncorrectPasswordScene, mSuccessScene, mUsernameTakenScene,
     37             mNewUserScene;
     38 
     39     @Override
     40     public void onCreate(Bundle savedInstanceState) {
     41         super.onCreate(savedInstanceState);
     42         setContentView(R.layout.activity_login);
     43         View container = (View) findViewById(R.id.container);
     44         mSceneRoot = (ViewGroup) container.getParent();
     45 
     46         mLoginScene = Scene.getSceneForLayout(mSceneRoot, R.layout.activity_login, this);
     47         mPasswordScene = Scene.getSceneForLayout(mSceneRoot, R.layout.login_password, this);
     48         mIncorrectPasswordScene = Scene.getSceneForLayout(mSceneRoot, R.layout.incorrect_password, this);
     49         mUsernameTakenScene = Scene.getSceneForLayout(mSceneRoot, R.layout.username_taken, this);
     50         mSuccessScene = Scene.getSceneForLayout(mSceneRoot, R.layout.success, this);
     51         mNewUserScene = Scene.getSceneForLayout(mSceneRoot, R.layout.new_user, this);
     52 
     53         mTransitionManager = new TransitionManager();
     54 
     55         // Custom transitions in/out of NewUser screen - slide in the 2nd password UI
     56         TransitionSet slider = new TransitionSet();
     57         slider.addTransition(new Slide().addTarget(R.id.retype).addTarget(R.id.retypeEdit));
     58         slider.addTransition(new Recolor().addTarget(R.id.password).
     59                 addTarget(R.id.passwordEdit));
     60         slider.addTransition(new Fade());
     61         mTransitionManager.setTransition(mLoginScene, mNewUserScene, slider);
     62         mTransitionManager.setTransition(mPasswordScene, mNewUserScene, slider);
     63         mTransitionManager.setTransition(mNewUserScene, mLoginScene, slider);
     64         mTransitionManager.setTransition(mNewUserScene, mPasswordScene, slider);
     65 
     66         // Custom transitions with recoloring password field
     67         Transition colorizer = new Recolor().addTarget(R.id.password).
     68                 addTarget(R.id.passwordEdit);
     69         mTransitionManager.setTransition(mLoginScene, mPasswordScene, colorizer);
     70         mTransitionManager.setTransition(mPasswordScene, mLoginScene, colorizer);
     71 
     72         mCurrentScene = mLoginScene;
     73     }
     74 
     75     public void applyScene(Scene scene) {
     76         mTransitionManager.transitionTo(scene);
     77         mCurrentScene = scene;
     78     }
     79 
     80     public void sendMessage(View view) {
     81         TextView textView = (TextView) view;
     82         CharSequence text = textView.getText();
     83         if (text.equals("Cancel")) {
     84             applyScene(mLoginScene);
     85         } else if (text.equals("Submit")) {
     86             if (mCurrentScene == mLoginScene) {
     87                 applyScene(mPasswordScene);
     88             } else if (mCurrentScene == mPasswordScene) {
     89                 applyScene(Math.random() < .5 ? mSuccessScene : mIncorrectPasswordScene);
     90             } else if (mCurrentScene == mNewUserScene) {
     91                 applyScene(Math.random() < .5 ? mSuccessScene : mUsernameTakenScene);
     92             }
     93         } else if (text.equals("New User?")) {
     94             applyScene(mNewUserScene);
     95         } else if (text.equals("Okay")) {
     96             if (mCurrentScene == mIncorrectPasswordScene) {
     97                 applyScene(mPasswordScene);
     98             } else { // username taken scene
     99                 applyScene(mNewUserScene);
    100             }
    101         } else if (text.equals("Reset")) {
    102             applyScene(mLoginScene);
    103         }
    104     }
    105 }
    106